DE589674C - Arrangement of two or more current transformers with a common primary winding or primary windings connected in series - Google Patents

Arrangement of two or more current transformers with a common primary winding or primary windings connected in series

Info

Publication number
DE589674C
DE589674C DEA53254D DEA0053254D DE589674C DE 589674 C DE589674 C DE 589674C DE A53254 D DEA53254 D DE A53254D DE A0053254 D DEA0053254 D DE A0053254D DE 589674 C DE589674 C DE 589674C
Authority
DE
Germany
Prior art keywords
series
arrangement
current transformers
windings connected
primary winding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEA53254D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AEG AG
Original Assignee
AEG AG
Publication date
Priority to DEA53254D priority Critical patent/DE589674C/en
Application granted granted Critical
Publication of DE589674C publication Critical patent/DE589674C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/32—Circuit arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
    • H01F27/422—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers
    • H01F27/427—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers for current transformers

Description

Anordnung zweier oder mehrerer Stromwandler mit gemeinsamer Primärwicklung oder in Serie geschalteten Primärwicklungen Gegenstand der Erfindung ist eine Anordnung von zwei oder mehr Stromwandlern mit gemeinsamer Primärwicklung oder in Serie geschalteten Primärwicklungen, um Fehlübersetzung und Fehlwinkel auszugleichen. Es ist bereits vorgeschlagen worden, derartige Fehler durch Serienschaltung der Sekundärwicklungen zu korrigieren. Gemäß der Erfindung läßt sich diese Anordnung dadurch verbessern, daß man parallel zu dem Sekundärkreis des einen Wandlers eine nach Bedarf einstellbare Impedanz schaltet.Arrangement of two or more current transformers with a common primary winding or primary windings connected in series. The invention relates to an arrangement of two or more current transformers with a common primary winding or connected in series Primary windings to compensate for incorrect transmission and incorrect angles. It is already has been proposed to eliminate such errors by connecting the secondary windings in series to correct. According to the invention, this arrangement can be improved by that one can be set as required in parallel with the secondary circuit of one converter Impedance switches.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Mit i i ist der eine Stromwandler bezeichnet, der mit seinem Eisenkern 13 den primären Leiter 15 umgibt. 12 ist der zweite Wandler, dessen Eisenkern mit 14 bezeichnet ist, und der von dem gleichen Primärleiter 15 erregt wird. Die Sekundärwicklung des Wandlers i i ist mit 16, die Sekundärwicklung des Wandlers 1z mit 17 bezeichnet. Die beiden Sekundärwicklungen sind in an sich bekannter Weise hintereinandergeschaltet und führen zu den Klemmen 18, an die die äußere Bürde angeschlossen wird. Parallel zu der Sekundärwicklung 16 ist eine Impedanz i9 geschaltet, mit welcher die Fehler weitgehendst ausgeglichen werden können.An exemplary embodiment of the invention is shown in the drawing. The one current transformer is designated by ii, which surrounds the primary conductor 15 with its iron core 13. 12 is the second transducer, the iron core of which is denoted by 14, and which is excited by the same primary conductor 15. The secondary winding of the converter ii is denoted by 16, the secondary winding of the converter 1z by 17 . The two secondary windings are connected in series in a manner known per se and lead to the terminals 18 to which the external burden is connected. An impedance i9, with which the errors can be largely compensated for, is connected in parallel with the secondary winding 16.

Bei der erfindungsgemäßen Einrichtung ist es von Bedeutung, daß die Kerne und die Windungen der Sekundärwicklungen richtig bemessen werden. Dies soll gemäß der weiteren Erfindung dadurch erreicht werden, daß das Verhältnis der Windungen auf den Sekundärwicklungen so bemessen ist, daß es gleich dem Verhältnis der mittleren Länge der Kraftflüsse in den zugehörigen Eisenkernen ist. Die Kraftliniendichte in den Eisenkernen kann dann in bequemer Weise mit der Impedanz i9 ausgeglichen werden.In the device according to the invention, it is important that the Cores and the turns of the secondary windings are properly dimensioned. This is supposed to can be achieved according to the further invention in that the ratio of the turns on the secondary windings is dimensioned so that it is equal to the ratio of the middle Is the length of the force flows in the associated iron cores. The density of lines of force in the iron cores can then easily be balanced with the impedance i9 will.

Claims (1)

PATENTANSPRÜci3E: i. Anordnung zweier oder mehrerer Stromwandler mit gemeinsamer Primärwicklung oder in Serie geschalteten Primärwicklungen und untereinander und mit der äußeren Bürde in Reihe geschalteten Sekundärwicklungen, dadurch gekennzeichnet, daß zum Ausgleichen der Fehlübersetzung und des Fehlwinkels parallel zu dem Sekundärkreis des einen Wandlers einstellbare Impedanzen (ig) geschaltet sind. a. Anordnung zweier oder mehrerer Stromwandler nach Anspruch i, dadurch gekennzeichnet; daß bei Eisenkernen verschiedener Abmessungen das Verhältnis der Windungen auf den Sekundärwicklungen gleich dem Verhältnis der mittleren Länge der Kraftflüsse in den entsprechenden Eisenkernen ist und daß die Kraftliniendichte in den Eisenkernen durch die Impedanz (icj) ausgeglichen ist.PATENT CLAIMS: i. Arrangement of two or more current transformers with common primary winding or primary windings connected in series and with each other and secondary windings connected in series with the external burden, characterized in that that to compensate for the incorrect translation and the incorrect angle parallel to the secondary circuit adjustable impedances (ig) of one transducer are switched. a. Arrangement of two or several current transformers according to claim i, characterized in that; that with iron cores different dimensions the ratio of turns on the secondary windings equal to the ratio of the mean length of the power flows in the corresponding Iron cores is and that the density of lines of force in the iron cores is due to the impedance (icj) is balanced.
DEA53254D Arrangement of two or more current transformers with a common primary winding or primary windings connected in series Expired DE589674C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA53254D DE589674C (en) Arrangement of two or more current transformers with a common primary winding or primary windings connected in series

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA53254D DE589674C (en) Arrangement of two or more current transformers with a common primary winding or primary windings connected in series

Publications (1)

Publication Number Publication Date
DE589674C true DE589674C (en) 1933-12-12

Family

ID=6938881

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA53254D Expired DE589674C (en) Arrangement of two or more current transformers with a common primary winding or primary windings connected in series

Country Status (1)

Country Link
DE (1) DE589674C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969345C (en) * 1937-01-01 1958-05-22 Koch & Sterzel Ag Method and device for error adjustment of electrical power and work meters, in particular electricity meters
DE973899C (en) * 1951-08-01 1960-07-14 Friedrich Raupach Art circuit for current transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969345C (en) * 1937-01-01 1958-05-22 Koch & Sterzel Ag Method and device for error adjustment of electrical power and work meters, in particular electricity meters
DE973899C (en) * 1951-08-01 1960-07-14 Friedrich Raupach Art circuit for current transformer

Similar Documents

Publication Publication Date Title
DE589674C (en) Arrangement of two or more current transformers with a common primary winding or primary windings connected in series
DE691111C (en) Regulating transformer or reactor
DE654602C (en) Regenerative braking circuit for alternating current collector machines
DE444003C (en) Protection circuit for transformers
DE925365C (en) Circuit arrangement with a main transformer and an auxiliary transformer
DE702956C (en) Measuring converter with translation and angle error compensation
DE438788C (en) Winding arrangement for transformers, the concentrically arranged windings of each phase are distributed over two legs
DE732163C (en) Step voltage converter arrangement for high voltages for testing converters
DE533861C (en) Device for the serial adjustment of coils to the nominal value of their inductivity
DE611614C (en) Protection device for three-phase networks
DE607128C (en) Step transformer adjustable under load for high currents
DE258438C (en)
DE1763824C3 (en) Voltage transformer
DE526696C (en) Arrangement for displaying faults in a transformer
AT112539B (en) Voltage regulation in three-phase networks using an additional transformer in connection with an excitation transformer without taps.
DE401969C (en) Protection device for transformers with changeable transmission ratio
DE647574C (en) Power converter
DE664521C (en) Single-line current transformer
DE764391C (en) High voltage transformer
AT138854B (en) Device for the remote transmission of measured quantities on electrical lines.
AT134184B (en) Regulating transformer, in particular for electric alternating current locomotives.
AT110188B (en) Bushing current transformer.
DE590643C (en) Device for measuring the primary power of high voltage transformers
DE208495C (en)
DE592349C (en) Circuit arrangement for securing the load equilibrium between two or more parallel working anodes of grid-controlled arc rectifiers